Making several assumptions about the rest of your hardware and your case.
I plugged that hardware and some assumed ones into two online calculators which suggested 547W minimum (not taking into account fans and non-graphics expansion cards), and 600W minimum.
So it would seem that a 650W minimum would be a good idea.

Making several assumptions about the rest of your hardware and your case.
I plugged that hardware and some assumed ones into two online calculators which suggested 547W minimum (not taking into account fans and non-graphics expansion cards), and 600W minimum.
So it would seem that a 650W minimum would be a good idea.

Making several assumptions about the rest of your hardware and your case.
I plugged that hardware and some assumed ones into two online calculators which suggested 547W minimum (not taking into account fans and non-graphics expansion cards), and 600W minimum.
So it would seem that a 650W minimum would be a good idea.

No, that's overkill, a mid range 500 will be fine, but if you have the money you might as well aim for a high-end 650 to future-proof for SLI.

Online calculators for power consumption show more than what a system would actually use, you're honestly fine with a mid range 500 for a single 460 with that hardware, but it never hurts to have a buffer, aim for a 550 psu esp if you're going for a generic/obligatory 2500k 4.5 OC.

No, that's overkill, a mid range 500 will be fine, but if you have the money you might as well aim for a high-end 650 to future-proof for SLI.

Online calculators for power consumption show more than what a system would actually use, you're honestly fine with a mid range 500 for a single 460 with that hardware, but it never hurts to have a buffer, aim for a 550 psu

But what if overkill is not a problem for my wallet too much? Because I am willing to buy it, just to future proof it some more.

That's the gist I get from them after seeing reviews and reading peoples' responses on using them. Personally would not use the GS or CX lines and the HX line isn't a SeaSonic OEM, unlike AX and TX, so I don't trust it quite as much.

Anandtech have a 570 @ ~412W with a cpu which draws ~20w more at stock then an i5-2500k (They have it oc at 4.3Ghz in the test) so your probably safe if you don't go bonkers with fans + Hdds. p.s Wouldn't waiting for a 660ti be wiser?

Anandtech have a 570 @ ~412W with a cpu which draws ~20w more at stock then an i5-2500k (They have it oc at 4.3Ghz in the test) so your probably safe if you don't go bonkers with fans + Hdds. p.s Wouldn't waiting for a 660ti be wiser?

I ordered an HD 7870 and it will come in tomorrow, could I possibly run it on my 500 watt PSU? Somebody said I probably could.

OFC.. a 500 watt will be able to run almost two 7870. Probably a 650 watt would be required but ye.. You're fine with one, and don't look for SLI options, usually they're not worth it so getting a PSU future proof is not stupid proof. Buy a better single GPU and you're GG.